<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script src="../js/vue.js"></script>
    <div id ="app">
        <p>原始字符串：{{msg}}</p>
        <p>反转字符串：{{msg.split('').reverse().join('')}}</p>
        <p>计算属性反转：{{revMsg}}</p>
    </div>
    <script>
        let app = new Vue({
            el:"#app",
            data:{ 
                msg:'Hello  Vue.js!'
            },
            computed:{
                revMsg:function(){
                    return this.msg.split('').reverse().join('')
               }
            }
        })
    </script>
</body>
</html>